Aerial railway.



PATENTED' MAY.14, 1907.

' W. J. HOGAN.

AERIAL RAILWAY.

APPLICATION FILED-NOV. 10, 1906.

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.PATENTED' MAY 14,1907. w; J. HOGAN.

AERIAL RAILWAY. APPLICATION FILE D NOV.'10, 1906.

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WILLIAM J. HOGAN, OF WILMINGTON, DELAWARE, ASSIGNOR OF ONE-HALF TO HAMILTON STEWART, OF WILMINGTON, DELAWARE.

AERIAL RAILWAY. I

Specification of Letters Patent.

Patented May 14, 1907.

Application filed November 10, 1906. Serial No. 342,862.

To all whom it may concern:

Be it known that I, WILLIAM J. HO AN, a citizen of the United States of America, residing at Wilmington, in the county of New castle and State of Delaware, have invented new and useful Improvements in Aerial Railways, 'of which the following is a specification.

This invention relates to aerial railways, and one of the principal objects of the inv ention is to provide improved means for counterbalancing the weight of the fall block.

Another object of the invention is to simpliiy the construction of apparatus of this character with a view to rendering the same ellicient and reliable in operation.

The objects and advantages of my invention maybe attained by means of the con struction and arrangement in the accompanying drawings, in which:

Figure 1.. is a side elevation of an aerial railway and cable system embodying my invention. Fig. 2 is an enlarged side elevation of the fall block carriage. Fig. 3 is an end view of the same. Fig. 4 is a vertical sectional view of the head tower. Fig. 5 is a plan view of the head tower. Fig. 6 is a sec-- tional view of one of the anchors for anchoring the head tower.

Referring to the drawings for a more particular description of my invention, the numeral 1 designates the head tower, and 2 is the tail tower. The head tower 1 is suitably anchored in a concrete block 3 in which is embedded a plate 4 through which the bolts 5 are passed, said bolts extending out through the concrete block and through the horizontal base-member 6 of the head tower .to secure a bracket 7 to the base of the head tower. A grooved pulley 8 is journaled in the brackets 7 as shown more particularly in Fig. 6. The head tower 1 comprises a suitably braced upright frame having journaled in its upper end three shafts a, b, c. Journaled in the frame under the shafts b and c are grooved pulleys .9 and 10 over which a cable 1.1 passes, said cable having a weight 12 at one end and the opposite end of said cable being connected at 1.3 to a double block 14 in which is journaled at one end a grooved pulley 15 and in the opposite or upper end a similar pulley 16. The cable 17, for moving this block downward, is wound around a drum 18 operatively connected to an engine or motor 1.9, and said cable 17 extending from the drum 18 around the pulley 8 up and around the pulley 15 and down to the bracket 7 where said cable is secured at 20. The endless fall line cable 21 passes around a drum 22 operatively connected to the engine, said cable passing from the gypsy drum 22 up and over a roller 23 on shaft a over pulley 24 on shaft 6 down to and under pulley 16 in the double block 14, up and around block 28 over a pulley 26 on shaft 0 and thence around a pulley 27 on the carriage, thence around a pulley on the fall block 28, and up and around a pulley 29 on the carriage and down to the fall block where the end of the cable is made secure to a loop 30 at the upper end of the hook 31. is secured to the carriage at 32 and extends around pulleys 33 and 34 on the tail tower 2 and thence under a pulley 35 journaled on uprights 36 forming part of the carriage frame, and thence over pulleys 37 and 38 on shafts c and. a, and thence down and around the drum 22. The anchor cable 39 extends across the top of the head tower and over the top of the tail tower and is suitably anchored at its ends, the two pulleys 40, 41, on the carriage being mounted to move upon said cable. The back line cable 42 passes around a drum 43 and thence up over pulleys 44 and 45 on shafts a and c, and thence down to the carriage where the end is made fast at 46.

The operation of my invention may be briefly described as follows: The weight of the fall block 28 is sufiicient to overcome the weight of the single line 21 extending from tower to tower. To move the carriage upon the cable 39, the drum 43 is rotated by the engine to pull the carriage from the tail tower 2 to the head tower 1, while the drum 22 is rotated to move the carriage from the head tower to the tail tower. The fall block 28 is raised and. lowered by means of the cable 17 and the drum 18.

The grooved pulley 8 may be doubled or trebled to compensate for the greatest lift of the fall block 28, and the pulleys in double block 14 and the grooved pulleys 24 and 28 on shaft 1) may also be doubled or trebled, thus obviating the necessity of erecting high towers.

From the foregoing it will be obvious that a cable system for aerial railways made in accordance with my invention and arranged The opposite end of the cable 21 as described, may be quickly operated to raise and lower a load and to carry it from place to place between the towers.

Having thus described the invention, what 1 claim is:

1. In a cable system aerial railway, a head tower, a tail tower, a main cable passing over said towers, a carriage mounted to travel on said cable, a fall block suspended from said carriage, a pulley journaled on the head tower, a double pulley block suspended from said pulley, a weight connected to said double block, a bracket at the base of said head tower, a pulley mounted in said bracket, and a cable, secured to said bracket passing around the pulley on the double block and around the pulley in the bracket, and the end of said cable being connected to a drum, substantially as described.

2. 1n a cab1e system aerial railway, and in combination with head and. tail towers, a carriage, a fall block suspended from said oarriage, a double pulley block suspended. within the head tower, a cable connected to said block, passing around pulleys on said head tower, and provided with a weight at its free end, a stationary pulley, a cable connected to the block of said pulley and passing around a pulley in the double block and around the stationary pulley, said cable being connected to a drum operated by the engine.

In testimony whereof, I allix my signature in presence of two witnesses.

WILLIAM J. I I ()GAN Witnesses CHARLES GREEN, GEORGE W. DUNLAP. 

